Welding slag cleaning device for laser cutting nozzle

Abstract

The invention relates to the technical field of laser cutting nozzle maintenance, and discloses a laser cutting nozzle welding slag cleaning device which comprises a frame body and a laser cutting nozzle body, and a clamping assembly for placing and installing the laser cutting nozzle body is arranged on the outer wall of the top of the frame body. And an ejection assembly for rapidly taking out the laser cutting nozzle body is arranged on the inner wall of the top of the frame body, the top of the frame body is fixedly connected with an upper mounting frame, and the inner walls of the two sides of the upper mounting frame are fixedly connected with guide rods. The laser cutting nozzle body is placed in the containing cavity, rotation stopping is conducted through the first edge groove, then the laser cutting nozzle body is rapidly clamped and fixed through the clamping assembly, and welding slag at the nozzle position of the laser cutting nozzle body is removed through the ejector pin; and then the driving motor rotates to enable the connecting shaft to drive the scraper to rotate, so that welding slag attached to the outer surface of the laser cutting nozzle body is rapidly removed through the rotating scraper.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting nozzle maintenance, in particular to a laser cutting nozzle welding slag cleaning device. Background Art

[0002] As a high-precision and high-efficiency processing method in modern manufacturing, laser cutting technology has been widely used in automobile manufacturing, aerospace, precision electronics and other fields. Its core principle is to partially melt or vaporize the material through a high-energy density laser beam, and blow away the melt with auxiliary gas (such as oxygen and nitrogen) to achieve material cutting.

[0003] In this process, the cutting nozzle, as a key component, directly affects the flow field stability, cutting quality and efficiency of the auxiliary gas.

[0004] However, the long-term high-temperature and high-speed processing environment leads to the accumulation of slag (or welding slag) inside and at the nozzle outlet, which is the residue formed by splashing or oxidation after the material is melted. The accumulation of such residues will significantly change the gas flow field distribution, resulting in reduced cutting accuracy, increased cutting seam roughness, and even nozzle blockage, laser head damage and other problems, seriously restricting processing continuity and equipment life. Summary of the invention

[0005] Technical issues solved In view of the shortcomings of the prior art, the present invention provides a laser cutting nozzle welding slag cleaning device, which is mainly used to solve the problem that slag (or welding slag) is easily accumulated inside and at the outlet of the nozzle due to long-term high temperature and high-speed processing environment. The slag is the residue formed by splashing or oxidation after the material is melted. The accumulation of such residues will significantly change the gas flow field distribution, resulting in reduced cutting accuracy, increased cutting seam roughness, and even causing nozzle blockage, laser head damage and other problems, seriously restricting processing continuity and equipment life.

[0006] Technical Solution To achieve the above object, the present invention provides the following technical solutions: A laser cutting nozzle welding slag cleaning device comprises a frame and a laser cutting nozzle body, the top outer wall of the frame is provided with a clamping assembly for fixing the laser cutting nozzle body, the top inner wall of the frame is provided with an ejection assembly for quickly removing the laser cutting nozzle body, the top of the frame is fixedly connected to an upper mounting frame, the inner walls on both sides of the upper mounting frame are fixedly connected to vertically arranged guide rods, a slide plate is slidably connected between the two guide rods via a sliding sleeve, a slag cleaning assembly for cleaning welding slag on the surface of the laser cutting nozzle body is provided at the bottom of the slide plate, and a lifting assembly for driving the slide plate to move in a vertical direction is provided on the upper mounting frame.

[0007] As a further solution of the present invention, the clamping assembly includes a placement cavity, which is opened on the top outer wall of the frame, and the inner wall of the placement cavity is provided with a side groove 1 for clamping the laser cutting nozzle body, and two extrusion slide grooves are symmetrically provided on both sides of the placement cavity, and an extrusion block is slidably connected in the extrusion slide groove, and a side groove 2 cooperating with the laser cutting nozzle body is opened on the side of the extrusion block, and an extrusion spring for driving the extrusion block to extend into the placement cavity is provided in the extrusion slide groove.

[0008] As a further solution of the present invention, the top outer wall of the frame is rotatably connected to a plurality of guide wheels via bearings, the top outer wall of the frame is fixedly connected to a guide rail, a pull frame is slidably connected to the guide rail, a pull rope is fixed at both ends of the pull frame, one end of the pull rope passes around two adjacent guide wheels and is connected to an extrusion block, and a blocking block is fixedly connected to the top of the frame for limiting the pull frame.

[0009] As a further solution of the present invention, the ejection assembly includes multiple ejection plates, and the bottom of the placement cavity is provided with multiple insertion holes that penetrate the frame body, and the multiple ejection plates are all inserted into the insertion holes. A connecting seat is fixedly connected between the bottom ends of the multiple ejection plates, and a slot is provided on one side of the connecting seat. An ejection tension spring is fixedly connected between the connecting seat and the top inner wall of the frame body, and a base frame is fixedly connected to the top inner wall of the frame body. A slide is inserted into the interior of the base frame, and one end of the slide is inserted into the slot. An inclined surface is provided at the end of the slide, and two reset tension springs are fixedly connected between the slide and the base frame.

[0010] As a further solution of the present invention, two force-bearing rods are fixedly connected to the top end of the sliding frame, and the ends of the force-bearing rods can contact the pulling frame.

[0011] As a further solution of the present invention, the slag cleaning component includes a connecting shaft, which is rotatably connected to the inside of the skateboard through a bearing, and a contoured inner cavity is opened in the connecting shaft, and a triangular prism is slidably connected in the contoured inner cavity, and a ejector pin is fixedly connected to the bottom end of the triangular prism, and a plurality of scrapers matching the conical surface of the laser cutting nozzle body are provided on the circumferential wall of the ejector pin, a slag cleaning spring is fixedly connected between the triangular prism and the top wall of the contoured inner cavity, and a driving motor for driving the connecting shaft to rotate along the axis is provided on the top of the skateboard.

[0012] As a further solution of the present invention, a guide cone is provided at the bottom end of the ejector pin, and the outer diameter of the bottom end of the guide cone is smaller than the inner diameter of the laser cutting nozzle body.

[0013] As a further solution of the present invention, the lifting assembly includes a connecting frame, which is fixedly connected to the top of the skateboard. The top outer wall of the upper mounting frame is fixedly connected to a lifting cylinder, and one end of the lifting cylinder piston rod passes through the upper mounting frame and is fixed to the connecting frame.

[0014] Beneficial Effects Compared with the prior art, the present invention provides a laser cutting nozzle welding slag cleaning device, which has the following beneficial effects: 1. The present invention places the laser cutting nozzle body in the placement cavity and stops the rotation through the side groove 1, and then quickly clamps and fixes the laser cutting nozzle body through the clamping assembly.

[0015] 2. The present invention uses a lifting assembly to move the slide plate downward along the guide rod until the slag cleaning assembly fits with the laser cutting nozzle body.

[0016] 3. The present invention removes the welding slag at the nozzle position of the laser cutting nozzle body by using a pin, and then drives the motor to rotate so that the connecting shaft drives the scraper to rotate, thereby quickly removing the welding slag attached to the outer surface of the laser cutting nozzle body by the rotating scraper.

[0017] 4. The present invention pulls the slide outward, the slide moves outward and is disengaged from the slot, and then the ejection tension spring is shortened and reset to move the ejection plate upward to eject the laser cutting nozzle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front side three-dimensional structure of a laser cutting nozzle welding slag cleaning device proposed by the present invention; Figure 2 A schematic diagram of the structure of a slag cleaning component of a laser cutting nozzle welding slag cleaning device proposed by the present invention; Figure 3 A laser cutting nozzle welding slag cleaning device proposed by the present invention Figure 2 A schematic diagram of a partial cross-sectional structure; Figure 4 This is a schematic diagram of the bottom side three-dimensional structure of a laser cutting nozzle welding slag cleaning device proposed by the present invention; Figure 5 This is a schematic diagram of the structure of a clamping assembly of a laser cutting nozzle welding slag cleaning device proposed by the present invention; Figure 6 This is a schematic diagram of the structure of an ejector assembly of a laser cutting nozzle welding slag cleaning device proposed by the present invention.

[0019] In the figure: 1. lifting assembly; 101. lifting cylinder; 102. connecting frame; 2. slag cleaning assembly; 201. driving motor; 202. connecting shaft; 203. scraper; 204. ejector pin; 205. slag cleaning spring; 206. contoured inner cavity; 207. triangular prism; 208. guide cone; 3. clamping assembly; 301. placement cavity; 302. side groove 1; 303. side groove 2; 304. extrusion block; 305. extrusion spring; 306. Extrusion chute; 307, guide wheel; 308, pull rope; 309, pull frame; 310, guide rail; 311, blocking block; 4, laser cutting nozzle body; 5, frame; 6, upper mounting frame; 7, guide rod; 8, slide plate; 9, ejection assembly; 901, force rod; 902, slide; 903, reset spring; 904, base; 905, inclined surface; 906, slot; 907, connecting seat; 908, ejection spring; 909, ejection plate. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0022] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0023] Reference Figure 1-Figure 6A laser cutting nozzle welding slag cleaning device comprises a frame 5 and a laser cutting nozzle body 4, the top outer wall of the frame 5 is provided with a clamping assembly 3 for placing and installing the laser cutting nozzle body 4, the top inner wall of the frame 5 is provided with an ejection assembly 9 for quickly taking out the laser cutting nozzle body 4, the top of the frame 5 is fixed with an upper mounting frame 6 by bolts, the inner walls on both sides are fixed with guide rods 7 by bolts, the two guide rods 7 are slidably connected with a slide plate 8 by a sliding sleeve, the bottom of the slide plate 8 is provided with a slag cleaning assembly 2 for cleaning the welding slag on the surface of the laser cutting nozzle body 4, the top of the upper mounting frame 6 is provided with a lifting assembly 1 for driving the slide plate 8, the lifting assembly 1 comprises a connecting frame 102, the connecting frame 102 is fixed to the top of the slide plate 8 by bolts, the top of the upper mounting frame 6 The outer wall of the part is fixed with a lifting cylinder 101 by bolts, and one end of the piston rod of the lifting cylinder 101 passes through the upper mounting frame 6 and is fixed to the connecting frame 102. When in use, the laser cutting nozzle body 4 is placed in the placement cavity 301 and stopped by the side groove 302, and then the laser cutting nozzle body 4 is quickly clamped and fixed by the clamping component 3, and then the slide plate 8 is moved downward along the guide rod 7 by the lifting component 1 until the slag cleaning component 2 is attached to the laser cutting nozzle body 4 and the welding slag on the surface of the laser cutting nozzle body 4 and the nozzle is effectively and quickly removed by the slag cleaning component 2. After the cleaning is completed, the slag cleaning component 2 is separated from the laser cutting nozzle body 4 by the lifting component 1, and then the laser cutting nozzle body 4 is quickly ejected by the ejection component 9.

[0024] The clamping assembly 3 in the present invention includes a placement cavity 301, which is provided on the top outer wall of the frame 5. The inner wall of the placement cavity 301 is provided with a side groove 1 302 for engaging the laser cutting nozzle body 4. The top outer wall of the frame 5 is provided with two extrusion slide grooves 306, and an extrusion block 304 is slidably connected in the extrusion slide groove 306. A side groove 2 303 is provided on the side of the extrusion block 304. Two extrusion springs 305 are fixed to the other side of the extrusion block 304 by bolts, and the other end of the extrusion spring 305 is fixed to the inner wall of one side of the extrusion slide groove 306. Two blocking blocks 311 for blocking the pulling frame 309 are fixed to the top of the frame 5 by bolts. A plurality of guide wheels 307 are rotatably connected to the top outer wall of the frame 5 through bearings. The outer wall is fixed with a guide rail 310 by bolts, and a pull frame 309 is slidably connected to one side of the guide rail 310. Pull ropes 308 are fixed at both ends of the pull frame 309. One end of the pull rope 308 passes around two adjacent guide wheels 307 and is fixed to the extrusion block 304. When in use, the pull frame 309 is pulled outward, and the pull frame 309 moves outward along the guide rail 310. At this time, the extrusion block 304 is pulled outward by the pull rope 308. At this time, the extrusion spring 305 is compressed and generates elastic force. When the laser cutting nozzle body 4 is placed in the placement cavity 301, the pull frame 309 is released. At this time, the extrusion spring 305 rebounds and resets to allow the extrusion block 304 to extrude the laser cutting nozzle body 4 through the side groove 2 303, so that the laser cutting nozzle body 4 is quickly clamped and fixed.

[0025] The ejection assembly 9 in the present invention includes a plurality of ejection plates 909, and the plurality of ejection plates 909 are all plugged into the top of the frame 5. A connecting seat 907 is fixed between the bottom ends of the plurality of ejection plates 909 by bolts. A slot 906 is provided on one side of the connecting seat 907. An ejection tension spring 908 is fixed between the connecting seat 907 and the top inner wall of the frame 5 by bolts. A bottom frame 904 is fixed to the top inner wall of the frame 5 by bolts. A slide 902 is plugged into the inside of the bottom frame 904, and one end of the slide 902 is inserted into the slot 906. 06, an inclined surface 905 is provided at the end of the slide 902, and two reset springs 903 are fixed between the slide 902 and the base frame 904 by bolts. Two force rods 901 are fixed to the top of the slide 902 by bolts, and the ends of the force rods 901 can contact the pull frame 309. By pulling the slide 902 outward, the slide 902 moves outward and disengages from the slot 906, and then the ejection spring 908 shortens and resets, and the ejection plate 909 moves upward to eject the laser cutting nozzle body 4.

[0026] The slag cleaning component 2 in the present invention includes a connecting shaft 202, which is rotatably connected to the inside of the slide plate 8 through a bearing, a profiling inner cavity 206 is provided in the connecting shaft 202, a triangular prism 207 is slidably connected in the profiling inner cavity 206, a top end of the triangular prism 207 is fixed with an ejector pin 204 by bolts, a scraper 203 is fixed with bolts on the outer side of the circumference of the ejector pin 204, a slag cleaning spring 205 is fixed with bolts between the triangular prism 207 and the profiling inner cavity 206, a driving motor 201 is fixed with bolts on the top of the slide plate 8, and the driving motor 201 is fixed with bolts on the top of the slide plate 8. 01 One end of the output shaft passes through the slide plate 8 and is fixed to the top of the connecting shaft 202. A guide cone 208 is provided at the bottom end of the ejector pin 204. The outer diameter of the bottom end of the guide cone 208 is smaller than the inner diameter of the nozzle of the laser cutting nozzle body 4. First, the welding slag at the nozzle position of the laser cutting nozzle body 4 is cleared by the ejector pin 204, and then the driving motor 201 is started. The driving motor 201 rotates to make the connecting shaft 202 drive the scraper 203 to rotate, so that the welding slag attached to the outer surface of the laser cutting nozzle body 4 is quickly cleared by the rotating scraper 203.

[0027] The present invention is divided into the following steps when used: S1: By pulling the pull frame 309 outward, the pull frame 309 moves outward along the guide rail 310, and at this time, the extrusion block 304 is pulled outward by the pull rope 308, and at this time, the extrusion spring 305 is compressed and generates elastic force. When the laser cutting nozzle body 4 is placed in the placement cavity 301, the pull frame 309 is released, and at this time, the extrusion spring 305 rebounds and resets to make the extrusion block 304 squeeze the laser cutting nozzle body 4 through the side groove 2 303, so that the laser cutting nozzle body 4 is quickly clamped and fixed; S2: Then the lifting cylinder 101 is extended to move the slide plate 8 downward along the guide rod 7 until the slag cleaning assembly 2 fits with the laser cutting nozzle body 4; S3: At this time, the welding slag at the position of the top hole of the laser cutting nozzle body 4 is removed by the ejector pin 204, and then the driving motor 201 is started, and the driving motor 201 rotates to make the connecting shaft 202 drive the scraper 203 to rotate, so that the welding slag attached to the outer surface of the laser cutting nozzle body 4 is quickly removed by the rotating scraper 203; S4: After the cleaning is completed, the slag cleaning component 2 is separated from the laser cutting nozzle body 4 through the lifting component 1, and then the pull frame 309 is pulled outward, and the pull frame 309 moves outward along the guide rail 310. At this time, the extrusion block 304 is pulled outward by the pull rope 308, and the fixed state of the laser cutting nozzle body 4 is released. At the same time, the pull frame 309 moves outward and contacts the slide 902. At this time, the slide 902 is forced to move outward and disengage from the clamping state of the slot 906. The reset spring 903 can assist the slide 902 to slide and reset, and then the ejection spring 908 shortens the reset state. The ejector plate 909 is moved upward and the laser cutting nozzle body 4 is ejected, thereby completing the cleaning of the laser cutting nozzle body 4. Then, when the next laser cutting nozzle body 4 is clamped, the laser cutting nozzle body 4 squeezes the ejector plate 909 downward and moves the connecting seat 907 downward until it contacts the inclined surface 905 opened at the end of the slide 902, so that the slide 902 slides horizontally outward through the inclined surface 905, and then under the action of the reset spring 903, the slide 902 slides inward and resets and is snapped into the slot 906, thereby completing the reset of the ejector plate 909.

[0028] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0029] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A laser cutting nozzle welding slag cleaning device, comprising a frame (5) and a laser cutting nozzle body (4), characterized in that: The top outer wall of the frame (5) is provided with a clamping assembly (3) for fixing the laser cutting nozzle body (4), the top inner wall of the frame (5) is provided with an ejection assembly (9) for quickly removing the laser cutting nozzle body (4), the top of the frame (5) is fixedly connected to an upper mounting frame (6), both side inner walls of the upper mounting frame (6) are fixedly connected to vertically arranged guide rods (7), a slide plate (8) is slidably connected between the two guide rods (7) via a sliding sleeve, a slag cleaning assembly (2) for cleaning welding slag on the surface of the laser cutting nozzle body (4) is provided at the bottom of the slide plate (8), and a lifting assembly (1) for driving the slide plate (8) to move in a vertical direction is provided on the upper mounting frame (6).

2. A laser cutting nozzle welding slag cleaning device according to claim 1, characterized in that: The clamping assembly (3) comprises a placement cavity (301), the placement cavity (301) being provided on the top outer wall of the frame (5), the inner wall of the placement cavity (301) being provided with a side groove 1 (302) for engaging the laser cutting nozzle body (4), two extrusion slide grooves (306) being symmetrically provided on both sides of the placement cavity (301), an extrusion block (304) being slidably connected in the extrusion slide groove (306), a side groove 2 (303) cooperating with the laser cutting nozzle body (4) being provided on the side of the extrusion block (304), and an extrusion spring (305) for driving the extrusion block (304) to extend into the placement cavity (301) being provided in the extrusion slide groove (306).

3. A laser cutting nozzle welding slag cleaning device according to claim 2, characterized in that: The top outer wall of the frame body (5) is rotatably connected to a plurality of guide wheels (307) via bearings, the top outer wall of the frame body (5) is fixedly connected to a guide rail (310), a pull frame (309) is slidably connected to the guide rail (310), a pull rope (308) is fixed at both ends of the pull frame (309), one end of the pull rope (308) passes around two adjacent guide wheels (307) and is connected to an extrusion block (304), and a blocking block (311) for limiting the pull frame (309) is fixedly connected to the top of the frame body (5).

4. A laser cutting nozzle welding slag cleaning device according to claim 3, characterized in that: The ejection assembly (9) comprises a plurality of ejection plates (909). The bottom of the placement cavity (301) is provided with a plurality of insertion holes penetrating the frame body (5). The plurality of ejection plates (909) are all inserted into the insertion holes. A connecting seat (907) is fixedly connected between the bottom ends of the plurality of ejection plates (909). A slot (906) is provided on one side of the connecting seat (907). An ejection tension spring (908) is fixedly connected between the connecting seat (907) and the top inner wall of the frame body (5). The top inner wall of the frame body (5) is fixedly connected with a base frame (904). A slide frame (902) is inserted into the interior of the base frame (904), and one end of the slide frame (902) is inserted into the slot (906). An inclined surface (905) is provided at the end of the slide frame (902). Two reset tension springs (903) are fixedly connected between the slide frame (902) and the base frame (904).

5. A laser cutting nozzle welding slag cleaning device according to claim 4, characterized in that: Two force-bearing rods (901) are fixedly connected to the top end of the sliding frame (902), and the ends of the force-bearing rods (901) are in contact with the pulling frame (309).

6. The laser cutting nozzle welding slag cleaning device according to claim 1, characterized in that: The slag cleaning component (2) comprises a connecting shaft (202), the connecting shaft (202) being rotatably connected to the inside of the slide plate (8) via a bearing, a contoured inner cavity (206) being provided in the connecting shaft (202), a triangular prism (207) being slidably connected in the contoured inner cavity (206), a top pin (204) being fixedly connected to the bottom end of the triangular prism (207), a plurality of scrapers (203) being provided on the circumferential wall of the top pin (204) and being matched with the conical surface of the laser cutting nozzle body (4), a slag cleaning spring (205) being fixedly connected between the triangular prism (207) and the top wall of the contoured inner cavity (206), and a driving motor (201) for driving the connecting shaft (202) to rotate along the axis line being provided at the top of the slide plate (8).

7. A laser cutting nozzle welding slag cleaning device according to claim 6, characterized in that: A guide cone (208) is provided at the bottom end of the ejector pin (204), and the outer diameter of the bottom end of the guide cone (208) is smaller than the inner diameter of the nozzle of the laser cutting nozzle body (4).

8. The laser cutting nozzle welding slag cleaning device according to claim 1, characterized in that: The lifting assembly (1) comprises a connecting frame (102), the connecting frame (102) being fixedly connected to the top of the slide plate (8), the top outer wall of the upper mounting frame (6) being fixedly connected to a lifting cylinder (101), one end of a piston rod of the lifting cylinder (101) passing through the upper mounting frame (6) and being fixed to the connecting frame (102).

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